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0, 1, 1, 4, 2, 4, 3, 13, 4, 7, 5, 13, 6, 10, 7, 40, 8, 13, 9, 22, 10, 16, 11, 40, 12, 19, 13, 31, 14, 22, 15, 121, 16, 25, 17, 40, 18, 28, 19, 67, 20, 31, 21, 49, 22, 34, 23, 121, 24, 37, 25, 58, 26, 40, 27, 94, 28, 43, 29, 67, 30, 46, 31, 364, 32, 49, 33, 76, 34, 52, 35, 121, 36, 55
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,4
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LINKS
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J. C. Lagarias and N. J. A. Sloane, Approximate squaring (pdf, ps), Experimental Math., 13 (2004), 113-128.
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FORMULA
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MAPLE
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a:= n-> `if`(n::odd, a((3*n+1)/2), n/2):
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CROSSREFS
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Bisection gives: A001477 (even part).
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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